diff --git a/src/main/java/org/redkale/net/client/Client.java b/src/main/java/org/redkale/net/client/Client.java
index bd4b0d5c3..5b435443a 100644
--- a/src/main/java/org/redkale/net/client/Client.java
+++ b/src/main/java/org/redkale/net/client/Client.java
@@ -43,6 +43,8 @@ public abstract class Client<C extends ClientConnection<R, P>, R extends ClientR
 
     protected final ScheduledThreadPoolExecutor timeoutScheduler;
 
+    protected final Random random = new Random();
+
     // 结合ClientRequest.isCompleted()使用
     // 使用场景：批量request提交时，后面的request需响应上一个request返回值来构建
     // 例如： MySQL批量提交PrepareSQL场景
@@ -404,7 +406,6 @@ public abstract class Client<C extends ClientConnection<R, P>, R extends ClientR
         if (workThread != null && workThread.threads() == entrys.length && workThread.index() > -1) {
             return entrys[workThread.index()];
         }
-        ThreadLocalRandom random = ThreadLocalRandom.current();
         int index = workThread == null || workThread.index() < 0
                 ? random.nextInt(entrys.length)
                 : workThread.index() % entrys.length;
diff --git a/src/main/java/org/redkale/net/client/ClientConnection.java b/src/main/java/org/redkale/net/client/ClientConnection.java
index d26d79e04..07f78d1f2 100644
--- a/src/main/java/org/redkale/net/client/ClientConnection.java
+++ b/src/main/java/org/redkale/net/client/ClientConnection.java
@@ -195,38 +195,6 @@ public abstract class ClientConnection<R extends ClientRequest, P extends Client
         }
     }
 
-    //    private void sendFastRequestInLocking(R request, ClientFuture respFuture) {
-    //        ByteArray array = arrayThreadLocal.get();
-    //        array.clear();
-    //        request.writeTo(this, array);
-    //        if (request.isCompleted()) {
-    //            doneRequestCounter.increment();
-    //        } else { //还剩半包没发送完
-    //            pauseWriting.set(true);
-    //            currHalfWriteFuture = respFuture;
-    //        }
-    //        channel.fastWrite(array.getBytes());
-    //    }
-    //
-    //    private void sendFastRequestInLocking(ClientFuture[] respFutures) {
-    //        ByteArray array = arrayThreadLocal.get();
-    //        array.clear();
-    //        for (ClientFuture respFuture : respFutures) {
-    //            if (pauseWriting.get()) {
-    //                pauseRequests.add(respFuture);
-    //            } else {
-    //                ClientRequest request = respFuture.request;
-    //                request.writeTo(this, array);
-    //                if (request.isCompleted()) {
-    //                    doneRequestCounter.increment();
-    //                } else { //还剩半包没发送完
-    //                    pauseWriting.set(true);
-    //                    currHalfWriteFuture = respFuture;
-    //                }
-    //            }
-    //        }
-    //        channel.fastWrite(array.getBytes());
-    //    }
     // 发送半包和积压的请求数据包
     void sendHalfWriteInReadThread(R request, Throwable halfRequestExc) {
         writeLock.lock();
@@ -237,7 +205,6 @@ public abstract class ClientConnection<R extends ClientRequest, P extends Client
                 this.currHalfWriteFuture = null;
                 if (halfRequestExc == null) {
                     offerFirstRespFuture(respFuture);
-                    // sendRequestInLocking(request, respFuture);
                     sendRequestToChannel(respFuture);
                 } else {
                     codec.responseComplete(true, respFuture, null, halfRequestExc);
diff --git a/src/main/java/org/redkale/net/client/ClientFuture.java b/src/main/java/org/redkale/net/client/ClientFuture.java
index 983d6fdd5..2a5f657f7 100644
--- a/src/main/java/org/redkale/net/client/ClientFuture.java
+++ b/src/main/java/org/redkale/net/client/ClientFuture.java
@@ -5,6 +5,7 @@
  */
 package org.redkale.net.client;
 
+import java.util.Collection;
 import java.util.Objects;
 import java.util.concurrent.*;
 import org.redkale.annotation.Nonnull;
@@ -53,6 +54,10 @@ public class ClientFuture<R extends ClientRequest, T> extends CompletableFuture<
         }
     }
 
+    public static ClientFuture[] array(Collection<ClientFuture> list) {
+        return list.toArray(new ClientFuture[list.size()]);
+    }
+
     @Override // JDK9+
     public <U> ClientFuture<R, U> newIncompleteFuture() {
         ClientFuture future = new ClientFuture<>(conn, request);
diff --git a/src/main/java/org/redkale/net/client/ClientWriteThread.java b/src/main/java/org/redkale/net/client/ClientWriteThread.java
index 8028b0941..1436006fa 100644
--- a/src/main/java/org/redkale/net/client/ClientWriteThread.java
+++ b/src/main/java/org/redkale/net/client/ClientWriteThread.java
@@ -51,7 +51,7 @@ public class ClientWriteThread extends Thread {
                         list.add(respFuture);
                     }
                 }
-                conn.sendRequestToChannel(list.toArray(new ClientFuture[list.size()]));
+                conn.sendRequestToChannel(ClientFuture.array(list));
                 list.clear();
                 if (over) {
                     return;